Consider a planet with twice the surface gravity of earth. the maximum height to which shield volcanoes could grow is how many times that on earth?
a. 0.25
b. 0.5
c. 1
d. 2

0.50

Explanation:

The maximum height is given by here h is the maximum height u is the initial velocity and is the angle of projection

So we can see from the relation that height is universally proportional to the gravity now in question it is given that the planet has the twice the surface gravity than the earth so the height will be half    

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6